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Add explanation to Part 1 introduction #89

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Add explanation to Part 1 introduction #89

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Add explanation to Part 1 introduction
laney0808 Sep 25, 2024
e3333d3
Add specification about scenes and stages in part 1 intro
laney0808 Sep 29, 2024
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7 changes: 7 additions & 0 deletions tutorials/javaFxPart1.md
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Expand Up @@ -15,6 +15,13 @@ Imagine yourself as a director of a play. First you provision the props that you

A JavaFX application is like a play you are directing. Instead of creating props, you create `Node`s (`Node`s are the fundamental building blocks of a JavaFX application), and place them onto a `Scene` (a scene is a graph of `Node`s). Then, you set your `Scene` on a `Stage` provided by JavaFX. When you call `Stage#show()` method, JavaFX renders a window with your `Stage` on it.

<box type="tip" seamless>
The `Stage` is like a window in a desktop application. It is the top-level container for a JavaFX application.
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Maybe we could add, for greater clarity, that the Stage consists of different scenes at different times, i.e. depending on the current action/state, the Scene on the Stage is different?

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Great point! Will add in the next commit. Thank you!

A `Scene` is a container for `Node`s. A stage contains multiple scenes, and shows different scenes at different times based on programme state, user actions, etc.
A `Node` is a component that can be added to a `Scene`. `Node`s can be simple controls like `Label`, `Button`, etc., or complex controls like `TableView`, `TreeView`, etc.
A `Root Node` is the topmost `Node` in a `Scene`, the parent of all other `Node`s. It is usually a pane like `StackPane`, `BorderPane`, etc.
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Well, that's a very high-level view of how JavaFX works. The actual implementation of a Java FX is a bit more (ahem...) "involved". This tutorial takes you through the steps of building a typical Java FX application, using a chatbot application called Duke as a running example. Given below is what the end result can look like if you follow this tutorial until the end:

<video oncontextmenu="return false;" width="700px" autoplay muted loop>
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